stage2: tiny improvements all over the place

* pass more x64 behavior tests
* return with a TODO error when lowering a decl with no runtime bits
* insert some debug logs for tracing recursive descent down the
type-value tree when lowering types
* print `Decl`'s name when print debugging `decl_ref` value

1 files changed, 4 insertions, 1 deletions

diff --git a/src/value.zig b/src/value.zig
index 23a04f2e5a..acc3fa3d74 100644
--- a/src/value.zig
+++ b/src/value.zig
@@ -711,7 +711,10 @@ pub const Value = extern union {
                 const decl = val.castTag(.decl_ref_mut).?.data.decl;
                 return out_stream.print("(decl_ref_mut '{s}')", .{decl.name});
             },
-            .decl_ref => return out_stream.writeAll("(decl ref)"),
+            .decl_ref => {
+                const decl = val.castTag(.decl_ref).?.data;
+                return out_stream.print("(decl ref '{s}')", .{decl.name});
+            },
             .elem_ptr => {
                 const elem_ptr = val.castTag(.elem_ptr).?.data;
                 try out_stream.print("&[{}] ", .{elem_ptr.index});